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SUSE:SLE-15-SP4:GA
ldns.22721
bsc_1195058.patch
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File bsc_1195058.patch of Package ldns.22721
commit 136ec420437041fe13f344a2053e774f9050cc38 Author: W.C.A. Wijngaards <wouter@nlnetlabs.nl> Date: Thu Sep 26 09:27:29 2019 +0200 * bugfix #51: Heap Out-of-bound Read vulnerability in ldns_nsec3_salt_data reported by pokerfacett. Index: ldns-1.7.0/dnssec.c =================================================================== --- ldns-1.7.0.orig/dnssec.c +++ ldns-1.7.0/dnssec.c @@ -1327,6 +1327,8 @@ ldns_nsec3_salt_data(const ldns_rr *nsec ldns_rdf *salt_rdf = ldns_nsec3_salt(nsec3_rr); if (salt_rdf && ldns_rdf_size(salt_rdf) > 0) { salt_length = ldns_rdf_data(salt_rdf)[0]; + if((size_t)salt_length+1 > ldns_rdf_size(salt_rdf)) + return NULL; salt = LDNS_XMALLOC(uint8_t, salt_length); if(!salt) return NULL; memcpy(salt, &ldns_rdf_data(salt_rdf)[1], salt_length);
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